diphtheritic
adjective
diph·the·rit·ic
| \ ˌdif-thə-ˈrit-ik, ˌdip-
\
\
Medical Definition of diphtheritic
: relating to, produced in, or affected with diphtheria
a diphtheritic membrane a diphtheritic child
also
: resembling diphtheria especially in the formation of a false membrane
diphtheritic dysentery